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测定了直立穗型和弯曲穗型水稻群体的小气候环境。结果表明 ,直立穗群体内 (1)光分布比较均匀 ,尤其中上部光环境明显改善 ;(2 )群体内温度高于弯曲穗群体 ,湿度低于弯穗群体 ,有利于光合效率的提高 ;(3)群体上部CO2 浓度高于弯穗群体 ,中下部低于弯穗群体 ,说明直立穗群体上部通透性好 ,中下部光合作用强
The microclimate environment of erect panicle type and curved panicle type rice population was determined. The results showed that (1) the light distribution in the erect panicle was more uniform, especially in the middle and upper part of the environment. (2) The temperature in the population was higher than that in the bent ear population and the humidity was lower than that of the bent ear population, which was in favor of improving the photosynthetic efficiency; 3) The CO2 concentration in the upper part of the population was higher than that in the bent ear, while the lower part was lower than that of the bent ear, indicating that the upper ear of the erect panicle had good permeability and strong photosynthesis in the middle and lower part